Onward

Reverse tower defense: place minions and push level to level

by Hydyhude

Summary

Onward turns tower defense around by sending you forward through levels, placing minions to attack instead of defend. Between runs a resource tree lets you upgrade minions, unlock new tiles and add special abilities before the next, harder level.

Attack-focused tower defense across increasingly harder levels
Resource tree upgrades minions and unlocks new tiles
Single-player with Steam Achievements